Head For The Hills Meaning

(idiomatic) To go to a safe place; to seek refuge; to flee.

Example: To travel to a higher elevation, especially to a rural region on vacation.
2006 July 13, Jeremy Caplan, "Comfy Camping," Time:
  Modern campers look for comfort first when they head for the hills.
2008 June 19, "Builders bashed after housing subsidence," managementtoday.com (UK) (retrieved 25 June 2008):
  Goldman Sachs warned that we are ‘only at the start of a steep downturn’ and advised investors to head for the hills.